[INFO] updating cached repository s5003597/rDNS
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/s5003597/rDNS
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/s5003597/rDNS" "work/ex/beta-1.38-1/sources/1.37.0/gh/s5003597/rDNS"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/s5003597/rDNS'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/s5003597/rDNS" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/s5003597/rDNS"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/s5003597/rDNS'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 651ca6e5bb8a4640539d894c7f1a7ee064939cd2
[INFO] sha for GitHub repo s5003597/rDNS: 651ca6e5bb8a4640539d894c7f1a7ee064939cd2
[INFO] validating manifest of s5003597/rDNS on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of s5003597/rDNS on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing s5003597/rDNS
[INFO] finished frobbing s5003597/rDNS
[INFO] frobbed toml for s5003597/rDNS written to work/ex/beta-1.38-1/sources/1.37.0/gh/s5003597/rDNS/Cargo.toml
[INFO] started frobbing s5003597/rDNS
[INFO] finished frobbing s5003597/rDNS
[INFO] frobbed toml for s5003597/rDNS written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/s5003597/rDNS/Cargo.toml
[INFO] crate s5003597/rDNS already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing s5003597/rDNS against 1.37.0 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/s5003597/rDNS:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "build" "--frozen"`
[INFO] [stdout] 28e7807e9120dfaf12f61c7ded47ddd7c29ddd6fb51544141271612835bc5b6b
[INFO] running `"docker" "start" "-a" "28e7807e9120dfaf12f61c7ded47ddd7c29ddd6fb51544141271612835bc5b6b"`
[INFO] [stderr]    Compiling rdns v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `test_2`
[INFO] [stderr]   --> src/main.rs:71:1
[INFO] [stderr]    |
[INFO] [stderr] 71 | fn test_2() {
[INFO] [stderr]    | ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.58s
[INFO] running `"docker" "inspect" "28e7807e9120dfaf12f61c7ded47ddd7c29ddd6fb51544141271612835bc5b6b"`
[INFO] running `"docker" "rm" "-f" "28e7807e9120dfaf12f61c7ded47ddd7c29ddd6fb51544141271612835bc5b6b"`
[INFO] [stdout] 28e7807e9120dfaf12f61c7ded47ddd7c29ddd6fb51544141271612835bc5b6b
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/s5003597/rDNS:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 6cf4e4dd54a1bb1fa5bc9a530dba0519732056a0f2e7534e75252df821ae94d9
[INFO] running `"docker" "start" "-a" "6cf4e4dd54a1bb1fa5bc9a530dba0519732056a0f2e7534e75252df821ae94d9"`
[INFO] [stderr]    Compiling rdns v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: function is never used: `test_2`
[INFO] [stderr]   --> src/main.rs:71:1
[INFO] [stderr]    |
[INFO] [stderr] 71 | fn test_2() {
[INFO] [stderr]    | ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.40s
[INFO] running `"docker" "inspect" "6cf4e4dd54a1bb1fa5bc9a530dba0519732056a0f2e7534e75252df821ae94d9"`
[INFO] running `"docker" "rm" "-f" "6cf4e4dd54a1bb1fa5bc9a530dba0519732056a0f2e7534e75252df821ae94d9"`
[INFO] [stdout] 6cf4e4dd54a1bb1fa5bc9a530dba0519732056a0f2e7534e75252df821ae94d9
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-4/1.37.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/1.37.0/gh/s5003597/rDNS:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.37.0" "test" "--frozen"`
[INFO] [stdout] 1247ba9750c0339020179ceeae2ee52fe078555bac2977c480d1a2bcaa00f01d
[INFO] running `"docker" "start" "-a" "1247ba9750c0339020179ceeae2ee52fe078555bac2977c480d1a2bcaa00f01d"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/rdns-2014686fe35b9375
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "1247ba9750c0339020179ceeae2ee52fe078555bac2977c480d1a2bcaa00f01d"`
[INFO] running `"docker" "rm" "-f" "1247ba9750c0339020179ceeae2ee52fe078555bac2977c480d1a2bcaa00f01d"`
[INFO] [stdout] 1247ba9750c0339020179ceeae2ee52fe078555bac2977c480d1a2bcaa00f01d